body, html
      line-height 1
      font-weight 200
      font-family 'PingFang SC','STHeitiSC-Light','Helvetica-Ligth',Arial,sans-serif

.clearfix
  display inline-block
  &:after
    display block
    content: ' '
    height 0
    line-height 0
    clear: both
    visibility hidden
@media (-webkit-min-device-pixel-ratio: 1.5),(min-device-pixel-ratio:1.5)
 .border-1px
  &::after
    -webkit-transition scaleY(0.7)
    transform scaleY(0.7)
   &::before
     -webkit-transition scaleY(0.7)
     transform scaleY(0.7)


@media (-webkit-min-device-pixel-ratio: 2),(min-device-pixel-ratio:2)
 .border-1px
  &::after
    -webkit-transition scaleY(0.5)
    transform scaleY(0.5)
   &::before
     -webkit-transition scaleY(0.5)
     transform scaleY(0.5)
